capture.html - mozsearch

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This test has a WPT meta file that expects 3 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /mediacapture-fromelement/capture.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

</head>

<body>

<script>

// Run captureStream() on different videos, and assert data is flowing.

function makeAsyncTest(filename) {

  promise_test(async test => {

    const video = document.createElement('video');

    video.src = "/media/" + filename;

    video.onerror = this.unreached_func("<video> error");

    video.play();

    const stream = video.captureStream();

    await new Promise(r => stream.onaddtrack = r);

    const recorder = new MediaRecorder(stream);

    recorder.start(0);

    const {data} = await new Promise(r => recorder.ondataavailable = r);

    assert_true(data.size > 0, 'Recorded data size should be > 0');

  }), "<video>.captureStream() and assert data flows.";

generate_tests(makeAsyncTest, [

  [ "video-only", "test-v-128k-320x240-24fps-8kfr.webm" ],

  [ "audio-only", "test-a-128k-44100Hz-1ch.webm" ],

  [ "video+audio", "test-av-384k-44100Hz-1ch-320x240-30fps-10kfr.webm" ]

]);

</script>

</body>

</html>